Home / 13,517.30-20,261.61-7,973.26

Finding the Fourth Proportional to 13,517.30, 20,261.61 and 7,973.26

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Solution

The fourth proportional to 13,517.30, 20,261.61 and 7,973.26 is: 11,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.30 : 20,261.61 = 7,973.26 : x
  2. Step 2: Convert to fraction form
    13,517.30/20,261.61 = 7,973.26/x
  3. Step 3: Cross multiply
    13,517.30x = 20,261.61 × 7,973.26
  4. Step 4: Simplify right side
    13,517.30x = 161,551,033.89
  5. Step 5: Solve for x
    x = 161,551,033.89/13,517.30
  6. Step 6: Final answer
    x = 11,951.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.